Air-removing device for water-pipe lines.



0. A. OLSON. AIR REMOVING DEVCE FOR WATER PlPE LINES.

APPLICATION FILED OCT-17.1916- Patented Mar. 27, 1917.

2 SHEETS-SHEET 1.

C. A. OLSON. AIR nsmovme DEViCE FOR WATER PIPE was.

2 SHEETS'SHEET 2- fji APPLICATION FILED OCT 7, H6- 3. hmnte Mm. 1917.

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CHARLES A. OLSON, OF GENEVA, ILLINOIS, ASSIGNOR T CRANE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

AIR-REMOVING DEVICE FOR WATER-PIPE LINES.

L22th538.

Specification of Letters Patent.

Patented Mar. 27, 1917.

Application filed October 17, 1916. Serial No. 126,205.

To all whom it may concern:

Be it known that 1, CHARLES A. OLSON, a citizen of the United States, and residing at Geneva, Kane county, State of Illinois, have invented certain new and useful Improvements in Air-Removing Devices for l/VaterPipe Lines, of which the following is a specification.

My invention relates in general to hot water heating systems, and has reference more particularly to that class of device designed for relieving such systems of any air accumulating therein. As is well known, such air in rising accumulates at the high point of the system and operates to effect a material reduction in the efliciency and radiating capacity of the system as a whole.

It is my aim therefore to provide an improved device adapted for effectually relieving such air accumulation and capable of positive automatic action whether in stalled in low or high pressure systems. The principal objects of my invention are, first, to improve the construction and increase the efliciency and utility of devices of this character. Second, to provide a novel tilting tank device constructed and arranged to of air and water at separate the mixture the high point of the system, and wherein the water thus separated operates to depress the tank and confine the air in a manner permitting pressure to be built up within the tank and thereby effect the discharge of the water and then the air upon the subsequent raising of the tank to its normal airvent-ing position. And, third, the provision of an improved construction affording a larger area of air vent than heretofore has been attained in devices of this character, whereby clogging or stoppage of such outlets by foreign substances is wholly overcome.

These, together with such other objects as may hereinafter appear, or are incident to my invention, I obtain by means of the construction illustrated in preferred form in the accompanying drawings, wherein Figures 1 and 2 represent views in perspective of my improved device, the tank in Fig. 2 being partially broken away to disclose interior parts of the same; and

Fig. 3 is an enlarged detail drawing in section of the T portion of the tank.

Referring to the drawings, the numeral 3 designates a water pipe line forming part of and desirably constituting the high point in a hot water heating system. Toward this point any air in the system inevitably rises; and in carrying out my, invention 1 interpose in this pipe 3 a branched T connection i, whose branch at extends upwardly in a direction toward the tank 5 of the tilting trap shown in the drawings The tank is provided with associated base members 6 and 7 securely mounted upon a suitable support 8, and occupies a position above the plane of the water line 3. Mounted on upwardly extending end portions 9 and 10 of the base member 6 are boxes 11 and 12, in which are respectively trunnioned the pipe sections 13 and 14. Connected to the inner ends of said pipe sections, as by suitable coupling members 15 and 16, is a divided 17 whose inner branch portion 18 has a screw-threaded engagement at 18 with the neck 5 of the tank and carries an airpipe 21 which projects toward the upper portion of the tankin the manner illustrated in Fig. 2 of the drawings.

From a reference to Fig. 3 it will be seen that the T 17 is formed with a passage 19 and an opening 19 whereby to provide communication between the trunnion pipe 1% and the tank interior, and also embodies a second passage 20 providing communication between the inner air pipe 21 and the outer air-conducting pipe 13. The outer end of this pipe 13 leads into the inlet side of a valve 22, the valve being mounted on the base 6 at the side of the tank and provided at its discharge side with an outlet 22 having an area substantially equal to that of the pipe 13. This valve is preferably of the pressure controlled type, such as is shown in Letters Patent #1157 ,870 of October 26, 1915, to which reference may be made for a detailed explanation.

Extending upwardly from the T a is a pipe 23 having at its upper end a coupling 24 provided with a socket 23 in which the outer end of the pipe 14 is seated, and having an enlarged upper portion in which is received the lower end of a pipe section 25, constituting a separator, desirably of relatively larger diameter than the pipe 23. Leading from the upper end of the separator 25 and communicating with the upper portion of the tank 5 is a flexible tubular connection 26.

The numeral 27 designates the valve stem of the valve 22 and is adapted to be actuated by the lever 28 upon the tilting of the tank. This lever is fulcrumed at its outer end upon the bracket 29 and has its inner end portion 28 associated in any suitable manner with the side of the tank. The latter is main tained in its raised position by means ot a weight 30, and it will be understood that when in this position the valve stem 27 is raised to open the air relief valve 22, and on the other hand depression of the tank causes this valve to close.

With the tank in its rased position, i. e. in the normal air discharging position of the tank, any air in passing along the pipe line 3 flows upwardly via the "l" branch r and pipe section 23 and from thence into the tank through the separator :25 and flexible pipe 26, and also along the horizontal pipe 1st and T passage 19 emerging into the tank interior at the opening 19, for its ultimate discharge through the open valve 22. The air however, that rises through the T i, is heavily laden with moisture to an extent at times as to virtually take the .i'orm ot a water emulsion. While a partial separation takes place in the separator 25, much of the emulsion finding a horivontal passage in the trunnion pipe l t tlows therealong into the tank where a further separation takes place, the water remaining in the tank and the air venting through the pipe 21, passage .20, outer pipe 13, valve 22, and outlet 22 to the atmosphere. When sutlieient water has accumulated in the tank to overbalance the weight 30, the tank falls, with the axis of this movement represented by the trunnion pipes 13 and 1a, and in falling closes the valve 22. Following the closing of the air valve, additional air entering the tank operates to displace the water forcing the same out of the tank back through the pipe 14 and T a into the pipe line 3, whereupon the tank rises to its normal position, and in rising opens the valve 22 to vent the air, as before. The action of the tank is positive and automatic in character, and requires no supervision, this being especially true in view of the fact that full areas of outlet are provided and that the line of air venting is removed trom any possible contact with foreign substances which may be carried along with the water into the tank.

From the foregoing description, taken in connection with the accompanying drawings,

the essential features, construction and advantages of my device, will be readily understood without requiring a more extended explanation.

What I claim is 7 1. In a system of the character described, the combination of a water pipe line provided with a standpipe interposed in said line, a tilting tank having a supporting base positioned independently of said pipe line, air inlet and outlet trunnion pipes axially mounted in horizontal alinement on said base exteriorly of said tank and connected at their inner ends with the neck of said tank, the outer end of the inlet trunnion pipe operatively associated with said standpipe, and a single valve disposed in the air outlet pipe and actuable in the tilting of the tank, said inlet trunnion pipe and standpipe constructed to afford an unobstructed return for conducting displaced water from the tank to the said water pipe line.

2. In a system of the character the combination of a water pipe line provided with a standpipe interposed in said line, and a tilting tank provided with trunnion pipes constituting its axis of tilt and a flexible air conducting conduit intermediately 0t and connecting its upper portion and said standpipe, one of said trunnion pipes connecting the standpipe and the lower portion 01 the tank, the other ot' said trunnion pipes constituting an airventing conduit and provided with a valve actuable in the tilting of the tank.

3. In a system of the character described, the combination of a water pipe provided with a standpipe interposed'in said line, a tubular air separating device mounted on said standpipe and communicating with said water pipe line through said standpipe, and

a tilting tank provided with trunnionpipes and having a flexible air conducting conduit disposed between and connecting the upper portions of said tank and said tubular separating device, one of said trunnion pipes connecting the standpipe and the lower portion of the tank and the other constituting an air venting conduit and provided with a pressure controlled valve actuable in the tilting of the tank.

In testimony whereof I have hereunto signed my name to this specification.

CHARLES A. OLSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. V

described, l 

